Internal-combustion engine.



P. M. ALLMON. INTERNAL COMBUSTION ENGINE. APPLIOA TION FILED AUG. 1, 1907.

Patented Nov. 22, 1910.

2 SHEETS-SHEET 1.

a: I I 35 ll 30 2 33 n 26 I8 I] 12 WITNESSES: INVENTOR m :6. 1 I @m A. fl Mnx gm a) BY P. M. ALLMON. INTERNAL COMBUSTION ENGINE. urmourox nun we. 1. 1907.

976,770. Pat canted Nov. 22,- 1910. I 2 sums-sum 2.

WITNESSES: INVENTOR on the line 5-5 the engine.

' be certain and reliable plished by the tional view UNiT'ED STATES PATENT OFFICE.

range x. m or minus, mama;

To all whom it may concern: a

Be it known that L-Pn'mu M. ALLnioN, a citizen of the United States, and residing at Pal-her, in the county of Randolph, State of Indiana, have invented certain new and useful Improvements in.Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in internal oombustion engines wherein the fuel such as kerosene, or an'unrefined oil, is introduced into the engine by means of a ump and wherein a release device or valve in the supply pipe between the pump and the discharge-en is employed' as a means to regulate the amount of oil that is injected into Objects of my invention are to provide a by-pass valve and mechanism adapted to be controlled by a speed in operation. sim 1e and economical in construction and wluch will be durable and not liable to get out of orderor re iair. These and other objects which will come apparent as the specification of my invention proceeds, are accommechanism hereinafter specified, defined in the claims, and illustrated in the. accompanyin drawings, wherein simiar characters 0 reference refer to corresponding parts throughout the several views, in which Figure 1 is a side view of an internal combustion engine wherein my invention is embodied. Fig. 2 is an enlarged side view and Fig. 3 is an enlarged transverse sectional view of the governormechanism and by-pass valve removed. Fig. 4 is a horizontal sectaken onthe line 4-4 Fig. 3. Fig. 5 is a horizontal-sectional view taken Fig. 2. Fig. 6 is a vertical sectional view taken on the line 6-6 fiyin'vention is shown in operative position on aniinte'rnal combustion engine of the type hereinbefore referred to, and as illustrated in Fig. 1. The cylinder 1 is provided with the usual vaporizer-chest 2 and the ignition-box 3, and is secured to the (1 frame 4 that is bolted to the foundation 5.

Leading through the pum 6 and into the va )orizer-chest 2 at its end istant from the cylinder and in a directiondisposed toward the ignition box 3 is the sup ly-pipe 7. The pump is suitably supported in position as Specification o! Letters Patent. Application filed August 1,

shown and 1s of governor which will the chamber9 as will be mrnaicnscomusnon' sworn.

Patented Nov. 22. 1910.- 1807. Serial Ho. 880.672.

such construction, and is actuated b the engine in such manner that the fuel oi is pro elled through the supply pi e 7 and injecte into the vaporizer-c est. y reason of the ever varying performance required of the engine and also of the varying quality and character of the oil used the effectual and economical performmice of the engine cannot be obtained by the injection into it of the certain predetermined quota of oilpropelled-as aforesaid by the pum To accomplish the perfect regulation 0 the-amount of oil so pumped which shall properly be permitted to ass into the vaporizer-chest, is one of the c lief objects of this invention.

Connected to the supply-pipe 7 at a point between the pump and the entrance of the vaporizer-chest is the overflowipe 8, which is turned upwardly and secure to and leads into the vertical central cylindricalchaml r 9 of the by-pass valve which consists of a cylindrical body 10 provided with the stuffing-box 1l andv havin its lower portion shouldered and threaded to receive the threaded bottom portion 12 havin the recess 13 of diameter suitably larger than that of chamber 9 so that the plunger 14 that has the enlarged conically shaped head 15 moves freely therein and about which there may be ample space for the passage of the oil which will enter the chamber 9. The main p rtion ofthe plunger 14 is prismatic in cross section as s own in Fig. 5, the purpose of which is to present the minimum amount of resistance to the oil that will flow through presently referred to. The'stem 16 of the plunger is retained slidingly in position, is circular in cross section, shouldered at its upper end and provided with the nut 17 against which not and the cap of the stutiing-box 11 the coilspring 18 impinges and thereby sustains the plunger m uppermost head vertical chamber 9. Disposed in proper position to be belted to the main shaft of the engine is a centrifugal governor supported on the frame 19 adapted to be bolted to the cylinder. The extended plate 20 of the frame is provided with the slotted opening 91 to receive and wherein the by-pass valve may be held in immovable position by tightening the set-screws 22 as shown in Fig. 3, Fi 5, and Fig. 6.

The governor which I have employed in position so that the 16 accurately closes the lower end of the stem of the plunger sha t 25 turned at a right an le so that its free end 26 -willextend angu arl and underneath the shaft 27. Secure and retained in position on the shaft 25 are the bars 28 and 29, the latter being rigidly secured on the shaft 25 and vertical y bifurcated and adapted to loosely engage the nut 17 secured thereon. The bar 28 is movably secured on the shaft 25, is fiat in cross section and adapted to engage the lower end of the stem 23. The extended rear ends provided on these bars 28 and 29 are soformed as to re ister with each other and are connected adjustabl by the set-screw 30 whereby the vertical distance apart of the forward ends of these bars 28 and 29 may be varied. By this construction and combination of parts the tension at which the valve will operate may-be easily varied so that oil of varied density or consistency may be efi'ectivcly handled. There will be no lost motion between the governor stem and the valye; and the valve will respond quickly and- FuIi er advantages are that slig it resistance is presented to the oil that enters the.

valve, and such wear as there may be at the head 15 will be uniform and the effectiveness of the valve will not be impaired in the least. Very light packing in the stuflingbox 11 is necessary as the function thereof is merely to prevent possible overflow of oil about the stem of the plunger, which is fitte as shown in Fig. 3 to move freely in the bore provided therefor.

31 designates an arm loosel journaled on the shaft 27 and sustained in position by the collar 32, the lug 31 's provided on this arm and is so positioned as to be above the extended-end 26 of the shaft 25. The arm 31 is provided with the shaft 33 bearing the looselytjournaled pulley 34 which is adapted to ride idly on the governor belt. The arm 31 is s itably weighted by the weight 35 secured t the shaft 33.

36 designates a suitable pulley secured to the shaft 27 of the overnor and about which pulley the belt rom the main shaft of the e ine is passed.

It will understood that the engine has the usual arrangement of valves, for the intake, combustion and exhaustion, usual in en ms of the type shown.

0 start the engine the i ition-box 3 is heated in the usual we he fiy-wheel of the on no is then move whereby the supply valve is opened and a charge of air is drawn 1 4 and bear against the ositively to the action of the overnor.

evavvo inby the suction produced by the iprward mgvement of-the piston. Goincidently with the" rearward movement of the piston a charge of oil is injected by the pump into the vaporizer-chest, which charge of oil 15 instantly vaporized and withthe compression u on the volatilized mixture of air and vaporized oil by the rearward movement of the piston, the mixture is ignited and the ,piston driven forwardly and the further action of the engine proceeds in the usual manner. a

In the use of the engine equipped with my invention, the operation of the lnvention is as follows: If a quick reduction of load being as shown-in Fig. 3) will cause thefplunger chamber 9 '-whichjwill permit the oil which is being propelled by the pump to follow the line of least resistance and which oil instead of passing into the vaporizer-chest 2 will pass through the chamber 9 and will be conveyed through the discharge pipe 37 back to the source-of supply.

By this combination and arrangement of the various arts the speed of the engine will be quick y regulated and great economy of fuel is obtained.

In case of breakage of the governonbelt. the weight imposed upon the arm 31'will cause it to instantly descend whereby'the-lug 31- actuating the arm 26 will cause the bar 29 to press the plunger 14 to the ertreme 0 en osition whereby the entire quota of 011 being propelled by the pump 6 will be permitted to pass through the chamber 9 of the by-pass valve and into the dischar e pipe 37. If it is desired to voluntariy throw the engine out of operation the arm 31 is rotated upwardly by the hand and brought down with the lug 3l 'against the portion of the arm 26 nearer the shaft 25, when the same actuation of the plunger '14 as above described, is efl'ected.

What I claim as my invention and desire to secure by Letters Patent, is-

1. In an internal combustion engine of the kind described, a fuel-supply pum 0 erated by the engine, a supply pipe Building from the pump to the en ine, a governor actuated b the engine an having its stem.

valve stem may moved to and held at varied distances apart, a pipe leading from handled by the engine occurs the ene closed position 14 to move downwardly thereby opening the Y governor-stem,

the sup 1y pi e and into the said valve at a point a ove t-l ie seat thereof.

2. In an internal combustion engine of the kind described, a fuel-supply pum 0 erated bv the engine, a supply 'lpe ea ing from the pump to the engine, a rame, a cen trifugal governor mounted thereon to be actuated by the en ine and having its stem disposed downwardly, aby-pass valve supported thereunder on said frame and having ts stem sustained yieldingly upwardly in normally closed position and adapted to .be engaged by the stem of the. governor, an adjusta le device supported by the said frame and capable of being operated between the said stems-whereby y be moyed to and held at varied distanoes'apart,

a papa leading from the supplyipe and into Sill by-pass valve at a point a ve the seat thereof. j I

3. In an apparatus for regulating internal combustion engines, the combination of a fuel-supply pump, a supply pipe leading from the pump to the engine, a pipeleadi from the said supply pipe, a valve insai pipe having a stem therein te sustain this valve normally in closed position, a frame a centrifugal governor mountedthereon an driven by a ,belt ernor-stem being disposed downwardly a weighted arm loosel ournaled onthe horiaontal shaft 0 erab e by the goverhor havng a pulley-w ieel adapted to rest upon said beltamd said arm being provided with the lug 31 on its side, a shaft journaled on said frame harin its end 26be'nt at an angle to be engaged the said lug, a lever 29 seeured to sai' shaft to engage the valve plun er, and alever 28j loosely journaled on the s aft 25 having its one end to eng e the means carried by sald levers whereby the distance'between same may be adjusted, substantially as described. v

4. In an apparatus for regulating internal combustion engines, the combination with a fuel supply pump operated by the engine, a fuel-supplypipe leading from the pump to the engine, a pipe leading: from the sup lypipe, a governor ada I the engine and having its stem disposed downwardly,

through said stalling-box and from the engine the g'ov-.

. apart, substantially as described.

In testimony whereof I' have signedmy' pted to'be actuate by a valve in said pipe'to con\ trolled by said governor consisting of a body havin a vertical chamber provided with a s'tu ng-box at its top and a lateral inleto enin for the said i e,aremovable P 1% Pill cu shaped bottom portion avin its interna diameter larger'than that'o I the said chamber and provided with 'an opening, a plunger of diameter smaller than that of the chamber, its lower end being flared and adapted to close the bottom of the chamber and its upper end being ada ted to pass aving a remova 1e head thereon, a sprln plunger upwardly, scribed 5. In an apparatus for regulatin internal combustion engines, a .fuel supp y pump adapted to be operated by the engine, a fuel supply-pipe leading from the pump to the engine, a pipe leading from the sup 1y pipe, a governor adapted to be actuat v the engine'and having its stem disposed downwardly, a. valve in said pi e that'leads from the fuel supply pipe, sai valve being disposed beneath the governor and conslstin of a bodyhaving a vertical c lindrica chamber rovided with a stuffingdiox at its top and iaving a lateral opening for said pipe. a removable cup-shaped bottom ortion having its internal diameter lar er t an th at-'of the said chamber and provi ed with an opening therein, a. plunger of diameter sum] or than that of the chamber and bein prismatic in form, its lower end bein cone, cal shaped and flared to a diameter slightly larger than that of the chamber 'the upper end of the said plunger being adapted to pass through said stufiing-box and having a removable head thereon, a spring between said substantially as de- ,head and the stalling-box, to press the plunger upwardly, means to maintain the governor-stem and plunger-at varied name to this specification in the presenceof' two subscribing witnesses.

. v PETER M; ALLiuoN.

Witnesses:

Ernst. L. Lisran, TnoMAsL. RYAN.

distance to press the I 

